US K–5 ELA standards

What every US jurisdiction teaches in K–5 English language arts in 2026–27, how each relates to Common Core ELA/Literacy, and what a generated, printable, keyed worksheet can do with it: the research for an ELA sibling of Mathness (mathness.app), condensed for reuse. This is v0, written before anything was built. It holds the landscape, a research file per jurisdiction, Common Core ELA as data, and product research (worksheet fit by strand, content sources, licensing, competitors, curricula). It has no crosswalk rows, no fit reviews and no lessons from building yet: those come with the app, as they did for us-math-standards. Facts are as of 2026-10-02; check the watch list in references/landscape.md before quoting a state's current set.

Words used here

• Strand: Common Core ELA's K–5 divisions: RL Reading: Literature, RI Reading: Informational Text, RF Reading: Foundational Skills, W Writing, SL Speaking and Listening, L Language. States re-cut them; a state's strand is whatever its document names.
• Anchor standard: one of the 32 College and Career Readiness standards (Reading 10, Writing 10, SL 6, L 6) every grade's standard hangs from. RF has none and stops at grade 5.
• Set, edition, crosswalk, own framework: as in us-math-standards: a set is one framework as a view over your catalogue; a state is modelled with Common Core codes (cc), as a crosswalk (xw: own codes or structure, mostly Common Core content) or as an own framework (own), by the rule in references/modelling.md.
• Carry share: the share of a state's sampled grade 1 and 3 rows whose content one Common Core standard covers; it decides xw (≥ 75%) or own (< 60%).
• Decodable: text a child can read from the letter-sound patterns and heart words (taught irregular words) taught so far; a scope and sequence is the order a program teaches them.
• Key kinds: computed (re-derived from data by code that shares nothing with the generator), selection (one authored right option; code checks the structure, a person checks the meaning), rubric (a model answer and look-fors), adult-scored (oral work an adult judges).
• Engine: how a sheet is made, which matters more than its strand: words (a lexicon), sentences (templated, with planted errors), passages (stored and reviewed), writing scaffolds, adult cards.

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